Data Quality Reports for Session: 108523 User: gp8 Completed: 10/22/2007


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060630.42NIM/GNDRAD/M1 - Reprocessed: Longwave calibration errornimgndrad60sM1.b1
D070203.1NIM/GNDRAD/M1 - Station setup and troubleshootingnimgndrad20sM1.a0, nimgndrad60sM1.b1, nimgndradM1.00


DQRID : D060630.42
Start DateStart TimeEnd DateEnd Time
11/25/2005170012/22/20051100
Subject:
NIM/GNDRAD/M1 - Reprocessed: Longwave calibration error
DataStreams:nimgndrad60sM1.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003. 
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.									     
The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records.  
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in February 2007.
Measurements:nimgndrad60sM1.b1:
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)


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DQRID : D070203.1
Start DateStart TimeEnd DateEnd Time
11/24/2005000012/01/20051400
Subject:
NIM/GNDRAD/M1 - Station setup and troubleshooting
DataStreams:nimgndrad20sM1.a0, nimgndrad60sM1.b1, nimgndradM1.00
Description:
This station was collecting data for the first time at this location - There were multiple 
instrument setup problems (PIR cabling, IRT setup)that were being corrected during this 
time.  Radiometer data is unreliable during this period.
Measurements:nimgndradM1.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)

nimgndrad20sM1.a0:
  • Instantaneous Upwelling Pygeometer Thermopile Voltage(inst_up_long_hemisp_tp)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance Pyrgeometer(inst_up_long_case_resist)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance Pyrgeometer(inst_up_long_dome_resist)
  • Instantaneous Surface Infra-Red Signal(inst_sfc_ir_signal)
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)

nimgndrad60sM1.b1:
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Instantaneous Upwelling Pygeometer Thermopile Voltage(inst_up_long_hemisp_tp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Instantaneous Case Temperature(inst_up_long_case_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Instantaneous Dome Temperature(inst_up_long_dome_temp)


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